Phantom glasses syndrome is a condition where a person experiences the sensation of still wearing glasses even after removing them.
Bruvva i can still feel my glasses but i aint even wearing them?!?!
You've got Phantom Glasses Syndrome mate.
Short slang for "for sure". Used the same way and pronounced "fo-show". Extra O's may be added for increased dramatic effect.
Person 1 : yo are you confident about this?
Person 2: Foshooooo